(idiomatic) To reveal everything, particularly information that is normally withheld. / Used other than figuratively or idiomatically: see tell, all.

A publication, usually a book or magazine article, which tells all, revealing everything, particularly what is normally withheld.

Telling all; revealing everything, particularly what is normally withheld.

(idiomatic, dated, colloquial) I do not believe what you said.

Betraying a confidence by disclosing private information.

(archaic) Please explain (something the requester does not yet understand). / (idiomatic, usually sarcastic) Expressing incredulity, please explain (some claim or position the speaker doubts).

An archaeological site in Israel popularly thought to be the biblical city of Ai.

Alternative spelling of telltale

Alternative spelling of telltale

To differentiate similar things.